Transcript

The most comprehensive study of amphibians ever done shows nearly a third of species
are theatened with extinction. The Great Lakes Radio Consortium’s Erin Toner reports:

More than five hundred scientists from more than sixty nations were involved in the
recent Global Amphibian Assessment. The three-year study looked at the status of more
than 5700 known species of frogs, toads, caecilians, and salamaders. It found out that
more than thirty percent of them are near extinction. In the Americas and Australia,
outbreaks of a highly infectious fungal disease have hurt amphibian populations.

But worldwide, the report says the biggest factors for the decline are habitat destruction
and pollution. It also says since amphibians depend on freshwater to survive, the loss
of species shows the Earth’s freshwater supply is in danger. But scientists say the
negative trend could reverse with a swift commitment of resources, such as creating new
protective areas and captive breeding grounds, and better protection of fresh water.

Transcript

A powerful pesticide that’s popular with gardners and homeowners will no longer be
sold starting in January. But that hasn’t stopped people from stocking up on the
chemical before it’s pulled from the shelves. The Great Lakes Radio Consortium’s
Chris Lehman reports:

Diazinon, at one time, was the most widely used pesticide on lawns. It can
still be sold through the end of the year. But there’s no deadline for homeowners
to use up their supplies. So that’s led some people to stockpile the product. The
decision to ban diazinon was made during the final weeks of the Clinton Administration.
But the Environmental Protection Agency gave diazinon producers four years to phase it out.

Jay Feldman is director of the environmental group Beyond Pesticides. He says the EPA
should have banned diazinon outright instead of phasing it out gradually.

“When the agency identifies a hazard such as this, one that is particularly problematic
to children, it ought to institute a recall, get the product out of commerce, make sure
that people do not continue to use the product unwittngly.”

Officials at the EPA say over-exposure to diazinon can affect the nervous system. They
also say it poses a risk to birds.

Transcript

Plaintiffs in a case before a New York Federal Court accuse the Environmental Protection
Agency of being too soft on protecting children from poisonous rat pellets. The Great
Lakes Radio Consortium’s Jenny Lawton reports:

The poisonous pellets aren’t just tough on rats. Some environmentalists say they’re
injuring young children as well. The Natural Resources Defense Council says more than
fifty-thousand children in the U.S. below the age of six have been sickened by rat poison
this year. In 1998, the EPA made a rule that required manufactuers to put a bitter taste
and a special dye in the pellets to keep children from eating them.

But three years later, the agency rescinded that mandate.

It said it had come to a “mutual agreement” with the rodenticide industry that those precautions
might be making the pellets less effective. But critics say that has put kids back in harm’s way.
Especially those living in low-income areas where rat infestation is a common problem.

Although the EPA won’t comment directly on the case, an agency report from 2001 argued that
when rodenticides are used correctly, and children are supervised around them, fewer accidental
ingestions happen.

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Low-sulfur fuel is now available to everyone, even if they haven't realized it yet. (Photo by Pam Roth)

A quiet revolution of cleaner air began this year for cars
and trucks. Motorists might not know it, but they’ve been burning
low-sulfur fuel as part of a requirement under the federal Clean Air
Act. The requirement was put in place during the Clinton Administration.
The Great Lakes Radio Consortium’s Mike Simonson reports:
http://environmentreport.org/wp-content/uploads/2004/11/simonson_112904.mp3

Transcript

A quiet revolution of cleaner air began this year for cars and trucks. Motorists might
not know it, but they’ve been burning low-sulfur fuel as part of requirement under the
federal Clean Air Act. The requirement was put in place during the Clinton Administration.
The Great Lakes Radio Consortium’s Mike Simonson reports:

Low-sulfur fuel is sometimes referred to as “green gas.” The gas isn’t really colored green.
But if it was, people might have noticed that they’re pumping different gas. For two years,
refineries in the United States have been investing millions of dollars to produce the new gas.
Dave Podratz is the manager of the Murphy Oil refinery in Superior, Wisconsin. He says his
refinery spent 26 million dollars to begin making the gas since October.

“It’s not the kind of thing you would notice, the average consumer going to the pump probably
wouldn’t even notice it watching tail pipe emissions, but the sufur dioxide emissions are
definitely going down.”

Podratz says the new fuel cut the amount of sulfur by 90 percent. And other tail pipe
emissions are going down as well. That’s because low sulfur fuel improves the efficiency
of your car’s catalytic converter, Which, in turn, reduces the amount of pollutants like
nitrogen oxide and carbon monoxide.

Transcript

A new vaccine that reduces food allergies in dogs could some day help people who suffer
dangerous reactions to food like peanuts, milk and wheat. The vaccine is also more
evidence in support of the so-called “hygiene hypothesis.” The Great Lakes Radio
Consortium’s Tracy Samilton reports:

Allergies to foods like peanuts have become much more common over the past 20 years.
Some researchers believe it’s because, as a hygiene-conscious society, we’re no
longer exposing our bodies to infections that stimulate the immune system and protect
us from allergies. Pediatrician Dale Umetsu of Stanford University mixed a component
of Listeria bacterium and peanuts into a vaccine. He then gave it to dogs
with allergies so severe that one peanut made them sick.

“After the treatment, the dogs could tolerate up, on average, to 30 to 40 peanuts,
so this was quite an increase and the effect lasted several months, at least,
after the treatment.”

Umetsu says it could be five years or more before a vaccine is available for human trials.
A vaccine could help millions of people with food allergies.

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Life in the suburbs is idyllic to some people... (Photo by Bon Searle)

...and many rats, now that the sewers have been flooded. (Photo by Tamara Bauer)

Unusually heavy rains this summer are partly to blame
for rats pouring out of the sewers in droves all over the country, and the nasty vermin are relocating to some of the most pristine
neighborhoods. The Great Lakes Radio Consortium’s Joyce
Kryszak explains what caused the rat invasion and
what’s being done to evict them:
http://environmentreport.org/wp-content/uploads/2004/11/kryszak_112904.mp3

Transcript

Unusually heavy rains this summer are partly to blame for rats pouring out of the sewers
in droves all over the country. And the nasty vermin are relocating to some of the most
pristine neighborhoods. The Great Lakes Radio Consortium’s Joyce Kryszak explains what
caused the rat invasion and what’s being done to evict them:

Piercing blue autumn skies and billowing white clouds drift across the chimneys of this modest,
but perfectly manicured suburb. There aren’t even many leaves crunching under foot. Town workers
have already come and vacuumed them all away. But there’s a nasty little secret scurrying under
the porches and behind the garden sheds in this Western New York town. County Sanitation Chief
Peter Tripi takes us for a peek.

“Can you see the teeth marks here? That’s actually rat gnaw marks. And there’s the garbage bag.
And that’s what we found when we went to this property.”

Now, you might be thinking that we trudged through derelict grass and scattered debris to find
these rat clues. Nope. This is a gorgeous, manicured yard – with not a blade of grass out of
place. But Tripi says rats aren’t choosy.

“You would never think by looking side to side that there would be a rat problem in this yard.
Doesn’t matter what neighborhood you live in, or how much money you’ve got. There’s no difference.
They just like your food.”

And you’d be surprised where rats can find food. A garbage can left even briefly uncovered, a
neglected bird feeder, uhhh… dog feces… and even a compost pile.

“Absolutely. This is a rat condo. It’s a grass-clipping compost pile that basically housed rats
to go a hundred yard radius all the way around to the different houses.”

Tripi says rats had to get creative with their housing. A summer of extremely heavy rains drove
the out of the sewers and into some previously rat-free neighborhoods. And with the West Nile
virus killing off millions of birds, the rats have less competition for the food they’re finding
above ground. The consequence is a virtual rat infestation all the way from New York and Illinois
to Virginia, Michigan and L.A. In Kenmore, there have been four thousand rat complaints – nearly
double last year.

(Sound of garbage truck)

Of course, none of this is news to the garbage collectors. They see the problem up close and
personal. Twenty-year veteran Louie Tadaro says this past summer is the worst he’s ever seen.

“Across the street there’s an alleyway and there had to be like ten of them in there, And we
started chasing them with garbage cans trying to kill them, but we couldn’t. By the time we
got there they just split.”

The problem is, they don’t split for long. Vector Control Chief Tripi says now that the rats
have relocated from the sewers to upscale accommodations, they kind of like it.

“And what that means is that they want to live with us. They want to be near our garbage and
our bird feeders. The problem with that is that rats carry diseases.”

We all know about stuff like typhus and the bubonic plague. But there are emerging diseases,
such as a pet-killer called Leptospiroris. It’s killing dogs all across the country. Tripi
says they need to get rid of the rats before the disease starts spreading to humans. So, his
team is taking the rats on, one yard at a time.

Tripi and his Vector control team set rat traps, they fill bait boxes with poison, and – when
they have to – they issue citations to residents who don’t heed the town’s new “rat control rules.” Covered garbage cans only. Clear away all brush. Clean up scattered bird seed and dog feces. Slowly, the rules seem to be working.

(sound of Tripi looking into rat trap)

Still Tripi says it’s mostly educational warfare. And he says now – heading into winter – is the
best time to nip the problem. If the rats get cozy, not only will they stay, they will multiply.
Fully nourished, one adult rat can breed up to sixty baby rats a year.

“The adult rat can live on a little bit of food, but he can’t procreate unless he has a lot of
food source. And they can’t live through the winter unless they’re warm and fattened up.”

So now is the time to – quite literally – put a lid on it. Keep those garbage cans covered, unless
you want some uninvited furry guests this winter, and many, many more come spring.

Meredith Buhalis and her daughter Zoe. Meredith's breast milk was tested for PBDEs as part of a study by the Environmental Working Group. (Photo by Meredith Buhalis)

Couch cushions often have PBDEs in them... (Photo by Nicholas Sales)

...and so do TVs. Are there any health effects from being surrounded by these chemicals? (Photo by Craig Young)

Flame retardant chemicals help make our lives safer.
The chemicals are designed to keep plastics and foam from
catching on fire, but the flame retardants are worrying some
scientists because these chemicals are turning up in people’s
bodies, sometimes at alarmingly high rates. The Great Lakes
Radio Consortium’s Mark Brush has more:
http://environmentreport.org/wp-content/uploads/2004/11/brush_112904.mp3

Transcript

Flame retardant chemicals help make our lives safer. The chemicals are designed
to keep plastics and foam from catching on fire. But the flame retardants are
beginning to worry some scientists because these chemicals are turning up in
peoples’ bodies. Sometimes at alarmingly high rates. The Great Lakes Radio
Consortium’s Mark Brush has more:

If you take a look around your house, you can find a lot of things that have
flame retardant chemicals in them. They’re in your television set, the cushions
in your couch, and the padding underneath your carpet. They’re known as poly-bromiated-diphenyl
ethers, or PBDEs. And they’re either mixed in or sprayed on plastics and foam to keep a fire
from spreading.

Five years ago a Swedish study found these chemicals were accumulating in women’s breast
milk. Studies in the U.S. followed, and researchers also found PBDEs in Americans, but at
even higher levels. In fact, Americans have some of the highest levels ever measured. And
over time, the levels have been going up.

(sound of baby)

Meredith Buhalis was one of those people measured in a study by an envrionmental organization
called the Environmental Working Group. Buhalis and 20 other first time moms sent in samples
of their breast milk. When the samples were tested, all of them had some level of PBDEs in
them. Buhalis says when she read the results she didn’t know what to think.

“I guess I kind of read the results and the study was like, ‘Oh, well that sort of sucks.’
I wish I knew more about what that meant. ‘Cause I don’t. You know, they don’t know what
that means.”

Scientists don’t know how or if the chemicals affect human health. And some scientists
think the government and the chemical companies aren’t doing enough to look into PBDEs.

(sound of typing)

In his office at the University of Texas in Dallas, Dr. Arnold Schecter is working on an
article about the flame retardants. He’s been studying toxic chemicals for more than thirty
years. He and some of his colleagues think PBDEs are a lot like another type of chemical…

“It reminds us of PCBs. PCBs structurally are similar to the PBDEs. So there is the worry,
or the concern, that they may have many, if not all, the toxic effect that PCBs have on humans.”

So far the data on PCBs strongly suggest that the chemicals can cause cancer in humans as
well as other human health effects such as damage to the nervous and immune systems. The
companies that manufacture the flame retardants say it’s not fair to compare PBDEs with
PCBs. They say the chemicals are vastly different.

But no one really knows whether the chemicals are similar in the way they affect human
health. That’s because no one’s studied the human health effects of PBDEs.

“Unfortunately, there are no published human health studies and I don’t believe any have
been funded by the federal government to date. Nor by industry, nor by any foundations,
which is a bit different than the situation with PCBs and dioxins years ago when many
studies were being funded.”

Some animal studies suggest that the chemicals can permanently disrupt the hormone and
nervous systems, cause reproductive and developmental damage, and cause cancer. All that
makes scientists such as Dr. Schecter especially concerned about the most vulnerable
population – developing babies.

Because of the concerns, the biggest manufacturer of these chemicals in the U.S. has agreed
to stop making two of the PBDE formulations that were found to accumulate in people. Great
Lakes Chemical says production will stop by the end of this year. The chemicals will be
replaced with another type of brominated flame retardant.

The Bromine Science and Environmental Forum is a trade group that represents companies
that make the flame retardants. Peter O’Toole is the group’s U.S. Director. He says so
far the amount of chemicals found in people doesn’t concern the companies, but the upward
trend does.

“And again, it wasn’t of alarming numbers, but the manufacturer was concerned that these
numbers were going up nonetheless. And they thought it was prudent, and they talked to the
EPA and EPA thought it was prudent if there was some sort of mutual phase out of those materials.”

Dr. Schecter says he commends the company for taking this step. But he says even though these
two formulations will be phased out, the flame retardants are already in our environment now.
He says his research has found high levels of PBDEs by wiping the plastic casing on television
sets, and in the dust found in homes. He says what’s in our homes now isn’t going to vanish,
so we need to figure out how the chemicals get into us, so we can avoid potential health problems.

For its part, the U.S. Envrionmental Protection Agency says large-scale human health studies
take a long time to develop. An agency spokesperson says the EPA first needs to learn how a
person becomes highly exposed. After that, they say researchers will be able to ask the question,
“for the highly exposed people, are there any health effects?”

(sound of baby)

That leaves people such as Meredith Buhalis, with a lot more questions than answers.

“We are thinking of having another baby, and I think I would really like to know more about
PBDEs. I think about it when I think about that.” (to her daughter) “Oh thank you. Hi, baby.
Hi, Zoe.”

The Federal government doesn’t plan to regulate the chemicals anytime soon. But some states
aren’t waiting for more studies. A handful of states have placed restrictions on certain
types of PBDEs. And in other states, legislation is pending.

Transcript

Scientists in the Great Lakes region are seeing good results from a new method that fights groundwater pollution. The Great Lakes Radio Consortium’s Erin Toner has more:

Researchers at Michigan State University are using a process that introduces microbial bacteria into contaminated aquifers. Over time, the microbes break down hazardous waste, usually from industrial spills. Before this new technology, the most common cleanup technique was called “air stripping.” That requires groundwater to be pumped to the surface, where toxic chemicals are basically blown out of the water and into the air.

Professor Mike Dybas says the new process doesn’t leave pollution in the ecosystem.

“It’s treatment actually occurring where the pollution is, and it is physically destructive of the contaminant. So at the end of the day, the contaminants are broken down into harmless end products.”

Dybas says the process could be used in any type of industrial or agricultural spill. He says since the microbes move with the water, cleanup could stretch for miles underground.

Transcript

Two high speed ferries that began operation on the Great Lakes this year have shut down for the winter. The Great Lakes Radio Consortium’s Chuck Quirmbach reports that for each of the boats, the first season did not go according to plan:

The Lake Express Ferry that crossed Lake Michigan between Milwaukee and Muskegon exceeded predictions and carried more than 120-thousand passengers. But the boat cancelled its November and December schedule because of a low number of bookings. Lake Express President Kenneth Szallai insists the problem is not people being reluctant to cruise the lake in cold weather. He says the company just didn’t do enough to market the late-season service.

“People are used to the traditional ferries ending up in October… and because we didn’t do our part of it… they didn’t realize we’d be operating and so our sales were kind of flat for those two months.”

Szallai says the Lake Express will again carry passengers next spring. Another high speed ferry between Toronto and Rochester, New York abruptly shut down in early September. A Rochester newspaper reports problems include, quote, questionable business decisions, bad luck and lack of cash. It’s unclear when the boat will resume service.

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Work is now being done to reduce mercury emissions. Pennsylvania pioneers an incentive program for the removal of mercury switches from cars. (Photo by Davide Guglielmo)

One of the nation’s top sources of mercury emissions is
scrap automobiles. U.S. automobiles built before 2003 used mercury in light and brake switches. When those cars are recycled, the mercury can escape into the air. Now one state in the region is working to prevent that from happening. The Great Lakes Radio Consortium’s Brad Linder reports:
http://environmentreport.org/wp-content/uploads/2004/11/linder_112204.mp3

Transcript

One of the nation’s top sources of mercury emissions is scrap automobiles.
U.S. automobiles built before 2003 used mercury in light and brake
switches. When those cars are recycled, the mercury can escape into the
air. Now one state in the region is working to prevent that from
happening. The Great Lakes Radio Consortium’s Brad Linder reports:

Mercury is a neurotoxin that can be found in the air, water, and soil.
Pregnant women who eat fish with high levels of mercury might see
developmental delays in their children after they’re born.

Pennsylvania is the first state in the nation to offer a bounty on mercury
switches from cars. This month, the state started offering a dollar per
switch to automobile recyclers.

Kathleen McGinty heads the state’s Department of Environmental Protection.
She says the goal is to reclaim 350-thousand switches, or nearly 600
pounds of mercury over the next two years. The material will be sent to
mercury recyclers.

“They safely take that mercury, they clean it up, they put it back into some products where it is still essential that we still use mercury.”

McGinty says the mercury can be reused in products ranging from
fluorescent lighting to dental fillings. She says mercury emissions from scrap automobiles are second only to coal-burning power plants in Pennsylvania.